debug_line.rb

def debug_line(*list)
    ret = "Debug: "
    0.step(list.length - 2, 2) do |x|
        label, value = list[x,x+2]
        ret += "#{label} = '#{value}', "
    end
    puts ret
end

debug_line("a", 10, "b", 20)

# Should print "Debug: a = '10', b = '20', "
# For some reason the second value (10 in this case) is swallowed every time.